一种用于高可逆四电子锌碘电池的双相电解质的制备方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI UNIV
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional aqueous zinc-iodine batteries suffer from poor reversibility of iodine cathode conversion, easy corrosion of zinc anode, and hydrogen evolution reaction, resulting in low cycle stability and coulombic efficiency, and unstable performance over a wide temperature range.
A biphase electrolyte is formed using hexafluoroisopropanol and 1-vinyl-3-butylimidazolium bromide. The positive and negative electrode reaction zones are physically isolated by liquid-liquid phase separation. A stable electrolyte system is constructed using organic cations and ethylene glycol to inhibit the corrosion of the zinc negative electrode by halogen intermediates and optimize the zinc ion solvation structure.
It achieves highly reversible four-electron conversion, suppresses the corrosion of zinc anode by halogen intermediates, improves the coulombic efficiency and cycle life of the battery, and maintains stable electrochemical performance in the range of -30 ℃ to 50 ℃.
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Figure CN122202568B_ABST
Abstract
Citation Information
Patent Citations
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